(written from a Production point of view)
Marta DuBois (born 15 December 1952; age 63) is the actress who played the impostor Ardra in the Star Trek: The Next Generation fourth season episode "Devil's Due" in 1991. DuBois was among the finalists for the roles of Natasha Yar and Deanna Troi in Star Trek: The Next Generation, but the roles went to Denise Crosby and Marina Sirtis. (citation needed • edit)
DuBois was born in David, Panama. She previously co-starred opposite Star Trek: The Motion Picture actor Stephen Collins and TNG guest-star Elizabeth Lindsey in the television series Tales of the Gold Monkey, which lasted only one season, airing from September 1982 through June 1983. She also had a recurring role on Magnum, P.I. and made guest appearances on such series as Hardcastle & McCormick (starring Brian Keith and Daniel Hugh Kelly in the title roles), The A-Team (with Dwight Schultz), L.A. Law (starring Corbin Bernsen and Larry Drake), Silk Stalkings, and Matlock.
She made her film debut with a supporting role in the 1979 drama Boulevard Nights, which also featured the late John Fiedler in the cast. She followed this with roles in the films Dead Badge (1995, with Raymond Cruz, Leland Orser, and James B. Sikking) and Black Out (1996, opposite Brad Dourif, Brad Greenquist, and Jeremy Roberts). DuBois also appeared in the television movies Grace Kelly, opposite Salome Jens and William Schallert, and The Trial of the Incredible Hulk, with John Rhys-Davies.
In 2000, she co-starred with Star Trek: Enterprise star Scott Bakula and Star Trek: Voyager star Robert Beltran in the romantic comedy Luminarias. Between 2005 and 2008, DuBois played Sergeant Roberta Hansen in ten McBride television movies opposite John Larroquette.
More recently, she portrayed Dora in the television western Lone Rider (2008, with Mike Starr, Tom Schanley, and Jimmy Ortega) and had a guest role as Maria Cordero in the Law & Order: Los Angeles episode "Ballona Creek" (2010, with Patrick Fischler, Lisa Kaminir, Leonard Kelly-Young, Saxon Trainor, and Tom Virtue).